chore(deps): bump next from 15.5.6 to 16.0.0

Bumps [next](https://github.com/vercel/next.js) from 15.5.6 to 16.0.0.
- [Release notes](https://github.com/vercel/next.js/releases)
- [Changelog](https://github.com/vercel/next.js/blob/canary/release.js)
- [Commits](https://github.com/vercel/next.js/compare/v15.5.6...v16.0.0)

---
updated-dependencies:
- dependency-name: next
  dependency-version: 16.0.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

package.json

@@ -32,7 +32,7 @@
         "framer-motion": "^12.11.3",
         "mdast-util-to-string": "^4.0.0",
         "mdx-annotations": "^0.1.4",
-        "next": "^15.3.2",
+        "next": "^16.0.0",
         "next-themes": "^0.4.6",
         "react": "^19.1.0",
         "react-dom": "^19.1.0",